55055501001 has 12 divisors (see below), whose sum is σ = 79641055728. Its totient is φ = 36649924344.

The previous prime is 55055500967. The next prime is 55055501003. The reversal of 55055501001 is 10010555055.

55055501001 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 550 + 100 + 1 = 666.

It is not a de Polignac number, because 55055501001 - 2⁷ = 55055500873 is a prime.

It is a super-2 number, since 2×55055501001² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55055501003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4472095 + ... + 4484388.

It is an arithmetic number, because the mean of its divisors is an integer number (6636754644).

Almost surely, 2^55055501001 is an apocalyptic number.

It is an amenable number.

55055501001 is a deficient number, since it is larger than the sum of its proper divisors (24585554727).

55055501001 is a wasteful number, since it uses less digits than its factorization.

55055501001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957172 (or 8957169 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The spelling of 55055501001 in words is "fifty-five billion, fifty-five million, five hundred one thousand, one".